package com.example.service;

import com.baomidou.mybatisplus.extension.service.IService;
import com.example.pojo.Area;
import org.apache.ibatis.annotations.Param;

import java.util.List;

public interface AreaService extends IService<Area> {

    List<Area> selectProvince(Integer cid);//查询所有省份
    String selectCityNameById(Integer id);
}
